Invention Grant
US08153293B2 Sandwich cathode electrochemical cell with wound electrode assembly
有权
具有缠绕电极组件的三明治阴极电化学电池
- Patent Title: Sandwich cathode electrochemical cell with wound electrode assembly
- Patent Title (中): 具有缠绕电极组件的三明治阴极电化学电池
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Application No.: US12967617Application Date: 2010-12-14
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Publication No.: US08153293B2Publication Date: 2012-04-10
- Inventor: Robert S. Rubino , Hong Gan , Esther S. Takeuchi
- Applicant: Robert S. Rubino , Hong Gan , Esther S. Takeuchi
- Applicant Address: US NY Clarence
- Assignee: Greatbatch Ltd.
- Current Assignee: Greatbatch Ltd.
- Current Assignee Address: US NY Clarence
- Agent Michael F. Scalise
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01M2/18 ; H01M4/58 ; H01M4/66

Abstract:
A new design for a cathode having a configuration of: SVO/first current collector/CFx/second current collector/SVO is described. The two cathode current collectors are vertically aligned one on top of the other in a middle region or zone of the cathode. This coincides to where a winding mandrel will be positioned to form a wound electrode assembly with an anode. The overlapping region of the two current collectors helps balance the expansion forces of the exemplary SVO and CFx active material layers. This, in turn, helps maintain a planar cathode that is more amenable to downstream processing. The use of two current collectors on opposite sides of an intermediate cathode active material also provides for enhanced reliability when cathodes are wound from the center as they lend structural integrity to outer portions of the wind.
Public/Granted literature
- US20110091776A1 Sandwich Cathode Electrochemical Cell With Wound Electrode Assembly Public/Granted day:2011-04-21
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